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FI Code 25 - Runs Okay - Right Knock Sensor

8320 Views 8 Replies 5 Participants Last post by  Capt. Bob
I bought a 2001 GL1800 with 200,000 miles--12,000 miles ago. It runs great but burns a bit of oil. I started getting a Fuel Injector code #25 on my last ride. It indicates a right knock sensor circuit problem. I have a service manual, but have no idea how to start on this issue.

Any help would be greatly appreciated.
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One of the guys I ride with had that same problem and it turned out to be the ECM. Check with your dealer on this code.

Wayne
I bought a 2001 GL1800 with 200,000 miles--12,000 miles ago. It runs great but burns a bit of oil. I started getting a Fuel Injector code #25 on my last ride. It indicates a right knock sensor circuit problem. I have a service manual, but have no idea how to start on this issue.

Any help would be greatly appreciated.
I ain't going to be any help to you KK. Just wanted to say, at least yours is giving a code. Mine just flashes, I finally took it in, they have had it over a week and still can't find the problem.
Just follow the service manual's troubleshooting procedure for a code 25. It's pretty straightforward. :thumbup:
Error Codes

Mine just flashes
When you put it in neutral with the sidestand down, it flashes long and short. Each long flash = "10" and each short flash = "1". Add up the values of the flashes and you have the "FI code" or Fuel Injector Error Code.

They're listed elsewhere in this forum. Try, "FI Codes" or "F1 Codes."
KarateKid, Rocketmans problem isn't a failure code, his whole electrical system is pulsing and causing the FI light to flash. Did you get anywhere with your knock sensor issue?
KarateKid, Rocketmans problem isn't a failure code, his whole electrical system is pulsing and causing the FI light to flash. Did you get anywhere with your knock sensor issue?
Not yet, I'll look at it this weekend.
When you put it in neutral with the sidestand down, it flashes long and short. Each long flash = "10" and each short flash = "1". Add up the values of the flashes and you have the "FI code" or Fuel Injector Error Code.

They're listed elsewhere in this forum. Try, "FI Codes" or "F1 Codes."
KarateKid, Rocketmans problem isn't a failure code, his whole electrical system is pulsing and causing the FI light to flash. Did you get anywhere with your knock sensor issue?
They are still talking wiring harness!:eek:4:
I started getting a Fuel Injector code #25 on my last ride. It indicates a right knock sensor circuit problem.
It could be your knock sensor. Mine was throwing that code on my '01 but it was running poorly also. It turned out to be a bad ECM. A bad knock sensor is not supposed to make it run any differently.
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